Solar Loan Calculator
Estimate the monthly payment on a solar loan and see what it really costs to finance a system. Set the price, APR, term, and the dealer fee that low-APR solar loans add — then compare the payment to the electricity bill it offsets to see if it's cash-flow positive from day one.
The dealer fee is the markup low-APR solar loans add to the cash price — set it to 0 if you have a true cash price or a fee-free loan. The monthly bill it offsets is what the system saves you, used for the cash-flow check.
Loan payment
$223/mo
Costs $83/mo more than your bill
The payment is above the bill it offsets — you'd pay more than you save until rates rise or the loan ends.
- Amount financed
- $28,750
- Dealer fee added
- $3,750
- Total interest
- $24,704
- Total paid
- $53,454
- Premium over cash price
- $28,454
An estimate, not a financing offer. A low advertised APR with a big dealer fee can cost more than a higher APR with no fee — compare the total paid and the premium over cash, not just the rate.
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Open calculatorSources & standards
This tool's methodology and data follow US standards and authoritative public datasets: